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An 810 kg race car can drive around an unbanked turn at amaximum speed of 60 m/s without slipping. The turn has aradius curvature of 150 m. Air flowing over the car's wing exerts adownward-pointing force (called the downforce) of 11500 N on the car. A) What is the coefficient of static friction between the track and the car's tires? B) What would be the maximum speed if no downforce acted on the car?
A meterstick is moving by an observer in a direction parallel to its length. The speed of the meterstick is .49c. What is its length in the reference frame of the observer
An ambulance travels down a highway at a speed of 30 m/s. Itssiren emits sound at a frequency of 400 Hz, What is the frequency heard by a passenger in the car as thecar approaches the ambulance
A 2kg box slides along a frictionless surface with a speed of 15m/s and approaches a horizontal spring with a spring constant of 2000N/m. If one end is fixed, How far will the spring compress in stopping the box
a typical car under hard braking loses speed at a rate of about 6 ms2. the typical reaction time to engage the brakes
A 1,030-kg car is pulling a 285-kg trailer. Together, the car and trailer have an acceleration of 2.00 m/s2 in the positive x-direction. determine the force exerted by the trailer on the car
Find the typical speed for a tsunami. (Note down that in the open ocean, tsunamis generally have amplitude of less than a meter, allowing them to pass ships unnoticed. As they approach shore, however, water depth decreases and the waves slow down. Th..
q1. determine the tension in each cable if the boat has a mass of 490 kg and the angle of each cable is 50 degrees from
the water in a deep underground well is used as the cold reservoir of a carnot heat pump that maintains the temperature
Illustrate what is the angular velocity of the merry-go-round now? What if the people were on it initially and then jumped off in a radial direction (relative to the merry-go-round)?
A spring with a constant of 32N/m is placed on a horizontal smooth surface and a mass of 2.3 kg is pushed against it. What is the velocity of the mass as it leaves contact witht he spring
What is the escape speed on a spherical asteroid whose radius is 500 km and whose gravitational acceleration at the surface is 2.7 m/s2
An oscillating mass-spring system has the following:displacement x=10cm; linear speed v=-20m/s, and an acceleration a=-20 m/s^2 what is the period of oscillation of the system
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